{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "980027720",
    "entityType": "User",
    "nonce": "0x4b195ffdffce6bae69985046768a15e33639912f66a03885ef1f029ff6465717",
    "signature": "0x42e4236c1b8bf5612d4e6f736ea9494ef3d2cdb25417dd22356bd61456a1644a0acd3e22fe0b6f5ddfaff2a8a85dc79cad201590770eb3c3ca1debd258dc3f5b1b",
    "signer": "0x25e1dfee0D681BE7Cc3edbBa57650eeadD7B075F",
    "userId": "486382568"
  }
}